Open_Close#

The benchmark for the MPI_File_open/MPI_File_close functions. All processes open the same file. To avoid MPI implementation optimizations for an unused file, a negligible non-trivial action is performed with the file. See the basic definitions of the benchmark below.

Open_Close Definition#

Property

Description

Measured pattern

MPI_File_o pen/MPI_File_close

etype

MPI_BYTE

File type

MPI_BYTE

Reported timings

t=Δt (in μsec), as indicated in the figure below.

Reported throughput

None

Open_Close Pattern#

../_images/image18.png